是went there还是went to there

went there 对.
went 是个动词there是个副词做状语,to太多余.
再问： My wife and I went on a trip to London last year.We went there in autumn?
再答： My wife and I went on a trip to London last year. 这个句子我认为你可以这么理 把went(go ) on a trip这个动词词组 作为一个完整的动词来用，这样的话，这个句子就可以当成 My wife and I went to London last year.这样 go to some places 这里 to london 变成了一个完整的状语来用。